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      • A fissure or sulcus is a natural division, deep furrow, or a groove that separates the gyri of the brain. The main groove of the brain is the interhemispheric fissure which divides the brain into two halves. Interhemispheric Fissure When the external surface is explored from above a fissure divides the oval of the brain into two hemisphere.
      brainparts.thecommonvein.net/definition/structure/parts/classification/gyri-and-sulci/sulci-and-fisuures/
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  2. A fissure or sulcus is a natural division, deep furrow, or a groove that separates the gyri of the brain. The main groove of the brain is the interhemispheric fissure which divides the brain into two halves. Interhemispheric Fissure. When the external surface is explored from above a fissure divides the oval of the brain into two hemisphere.

  3. Aug 19, 2021 · Cerebral sulci and fissures are grooves between the adjacent gyri on the surface of the cerebral hemispheres. By allowing the cortex to invaginate to form sulci and gyri the surface area of the cortex is increased threefold 4.

    • Joachim Feger
  4. These intricate folds are a hallmark feature of the human brain, contributing to its remarkable complexity and functional specialization. In this article, we delve into the anatomy of brain fissures, their developmental origins, and their significance in brain function and evolution.

  5. Aug 10, 2023 · They are called fissures simply because they are a different shape of hole, they look more like a crack or cleft, and typically occur between separate anatomical structures. For example, the superior orbital fissure lies between the lesser and greater wings of the sphenoid bone.

    • Carolyn Perry
    • 12 min
    • Medical Content Validation
  6. The diagram reflects the interhemispheric fissure as depicted in the axial plane dividing the brain into two halves. The bright green line represents the central sulcus which separates the the frontal lobes (green) from the parietal lobes (light purple. The parito-occipital fissure (pink) separates the parietal lobes from the occipital lobes.

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  7. Aug 28, 2023 · The Sylvian fissure is the most consistent and distinct landmark of the lateral hemispheric surface of the brain. It is formed by the anatomical relationship between the frontoparietal operculum, the temporal operculum, and the insula.

  8. Sep 28, 2022 · The deep furrows are called fissures and shallow ones are called sulci (singluar; sulcus). The ridges between the sulci are known as a gyri (singular; gyrus). Major sulci and fissures divide each hemisphere into four lobes: the frontal, parietal, occipital, and temporal lobes.

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